Are EcoHarmony consumer units fully compliant with BS 7671 Amendment 3?

Yes. All consumer units are assembled and tested to BS 7671:2018 including Amendment 3 (18th Edition). Test documentation is supplied with each unit to support your Electrical Installation Certificate.

Do I need a Type A or Type B RCBO in the consumer unit for an EV charger?

If the EV charger has built-in 6mA DC fault detection, a Type A RCBO is sufficient. If the charger does not have built-in DC detection, a Type B RCBO is required.

Consumer Units for EV Installers — Trade Supply UK

Q: Can I order a custom consumer unit configuration?

Yes. Trade accounts can request custom configurations including different RCBO ratings, additional circuits, specific breaker brands or non-standard layouts. Minimum quantities may apply for bespoke builds. Contact your dedicated account manager.

Q: What is the cut-off time for next-day delivery on consumer units?

Trade account orders placed before 1pm on working days dispatch same day for next working day delivery. Orders placed after 1pm or on weekends and bank holidays dispatch the following working day.

Q: Can I bundle consumer units with an EV charger order from EcoHarmony?

Yes. Ordering your consumer unit alongside your EV charger means a single delivery and a single invoice. Ask your account manager about bundled orders and whether volume pricing applies.

Trade & Wholesale — Consumer Units

Fully Assembled Consumer Units — Ready to Install

Pre-wired, pre-configured consumer units for EV charger installs at trade prices. Save time on every job — delivered next working day for trade accounts.

✓ Pre-Wired & Tested

✓ BS 7671 Compliant

✓ Next-Day Dispatch (trade)

✓ Trade Pricing

✓ Custom Configs Available

Why Pre-Assembled?

Stop Wiring Consumer Units on Site

Time is your most expensive material

A pre-assembled consumer unit arrives wired, labelled, tested and ready to connect. Eliminates on-site wiring time, reduces the risk of errors under pressure, and gets you to the next job faster. For installers doing multiple jobs a week, the time saving compounds quickly.

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Less time on
site per job

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Pre-Wired & Factory Tested

Every unit arrives assembled and tested. No on-site wiring of breakers or RCDs. Open the box, connect incoming and outgoing cables, done.

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BS 7671 Compliant, Documented

Built to Amendment 3 (18th Edition). Test certificates and documentation supplied with every unit to support your EIC and any building control sign-off.

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Correctly Labelled

Circuit labels applied at factory. No more writing on site or relying on the customer to label things correctly later. Professional finish, every time.

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EV-Ready Configurations

Configurations include the correct RCBO type for EV charger circuits — Type A or Type B as required. We match the unit to your charger type.

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Next-Day Dispatch for Trade

Trade account orders placed before 1pm dispatch same day for next working day delivery. No last-minute supply runs.

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Custom Configurations

Need a specific breaker rating, dual-tariff metering, or a non-standard layout? Speak to your account manager. We assemble to order for volume requirements.

Available Configurations

Consumer Unit Configurations for EV Installs

All units assembled, tested and documented. Custom configurations available on request for trade accounts.

Standard Domestic

Domestic EV Consumer Unit

100A main switch
Type A RCBO for EV charger circuit (32A)
Pre-wired and labelled
Suitable for most 7.4kW home charger installs
BS 7671 Amendment 3 compliant
Test documentation included

Enhanced Protection

EV Unit with Type B RCBO

100A main switch
Type B RCBO for EV charger circuit (32A)
Required for chargers without built-in DC detection
Pre-wired and labelled
BS 7671 Amendment 3 compliant
Test documentation included

Split Meter / Dual Tariff

Dual-Tariff EV Consumer Unit

Configured for separate EV metering
Supports Economy 7 and smart tariff setups
Ideal for customers on Octopus Go or similar
RCBO protection on EV circuit
Pre-wired, labelled and tested
Ask account manager for config options

How It Works

Order to Install in 4 Steps

Choose your configuration

Standard domestic, Type B RCBO, dual tariff — or ask for a custom build.

Order before 1pm

Trade account orders dispatch same day for next working day delivery.

Arrives ready to connect

Unit is pre-wired, tested and labelled. No assembly required on site.

Connect, certify, done

Test documentation is included. Your EIC is quicker with less on-site verification work.

Common Questions

Consumer Unit Trade FAQs

Are the units fully compliant with BS 7671 Amendment 3 (18th Edition)?

Yes. All consumer units are assembled and tested to BS 7671:2018 including Amendment 3. Documentation is supplied with each unit to support your installation certificate.

Can I order a custom configuration not listed above?

Yes. Trade accounts can request custom configurations — different RCBO ratings, additional circuits, specific breaker brands or non-standard layouts. Minimum quantities may apply for bespoke builds. Speak to your account manager.

Do I need a Type A or Type B RCBO for my EV charger?

If the charger has built-in 6mA DC fault detection, a Type A RCBO is sufficient. If not, a Type B RCBO provides the required protection. Your account manager can advise based on the charger model.

What's the cut-off time for next-day delivery?

Orders placed before 1pm on working days dispatch same day for next working day delivery. Orders placed after 1pm or on weekends and bank holidays dispatch the following working day.

Can I bundle consumer units with a charger order?

Yes — and many trade customers do exactly this. Ordering your consumer unit alongside your charger means a single delivery and a single invoice. Ask your account manager about bundled orders and whether volume pricing applies.